Are these people under non-competes? I see a dozen customers for a competing (read: "clone") company with 'fanatical' support in the comments.
I think the issue you don’t see “pop up” competitors is the inability to market “great support” empirically. There is a lemon market comment somewhere that is dead on. You can have all the high cost experts on staff but Everyone is going to think your marketing is full of it until they try your services or are referred via word of mouth.